body {
    margin: 0;
}

.content {
    width: 100vw;
    height: 100vh;
}

.content-mv {
    height: 100vh;
    width: 100vw;
    line-height: 100vh;
    text-align: center;
    background: #727171;
    color: #ffffff;
}

.content-barrage {
    height: 100vh;
    width: 100vw;
    position: absolute;
    top: 0;
    left: 0;
    overflow: hidden;
}

.content-input {
    z-index: 20;
    position: fixed;
    bottom: 200px;
    height: 60px;
    background: rgba(0, 0, 0, 0.3);
    margin: auto;
    width: 600px;
    border-radius: 10px;
    left: 0;
    right: 0;
    line-height: 60px;
    text-align: center;
    border: 3px solid rgba(0, 0, 0, 0.2)
}

.content-barrage-single {
    /* top: 200px; */
    background: rgba(0, 0, 0, 0.4);
    border-radius: 20px;
    display: inline-block;
    padding: 4px 18px;
    color: rgb(231, 80, 80);
    position: absolute;
    white-space: nowrap;
    transition: all 0.3s;
}

/*  为了防止突兀的出现 现在是从又到左面的负一屏 但是影响性能 可以根据自己的业务场景修改 */

@keyframes barrage {
    from {
        left: 100%;
    }
    to {
        left: -100%;
    }
}